The great American writer and essayist Joan Didion has died, at 87. Truly it can be said, she witnessed  appointments in Samarra. "The Appointment in Samarra" (as retold by W. Somerset Maugham [1933])   The speaker is Death   There was a merchant in Bagdad who sent his servant to market to buy provisions and in a little while the servant came back, white and trembling, and said, Master, just now when I was in the marketplace I was jostled by a woman in the crowd and when I turned I saw it was Death that jostled me.  She looked at me and made a threatening gesture,  now, lend me your horse, and I will ride away from this city and avoid my fate.  I will go to Samarra and there Death will not find me.  The merchant lent him his horse, and the servant mounted it, and he dug his spurs in its flanks and as fast as the horse could gallop he went.  Then the merchant went down to the marketplace and he saw me standing in the crowd and he came to me and said, Why did you make a threati